Feel the power of your music and enjoy the comfort and portability of the Sony studio monitor headphones. With 40mm driver units, these headphones produce deep, accurate bass and crisp highs and midrange tones. You will also enjoy the comfort of the wide, padded headband and the handy folding design that makes it easy to pack them in your bag. Easily amongst our HeadRoom Sony favorites, the studio head phones is ideal for studio work, serious DJs, and casual iPod use alike. The combination of fresh looks, efficient sensitivity ratings and superb audio performance make it a top closed-back choice for any application from street-rockin' portable players to high-end home listening to serious studio monitoring.